<!DOCTYPE html>
<html>

<head>
    <title>第十三次作业作业</title>
    <meta charset="utf-8">
    <style>
    li {
        display: block;
        float: left;
        width: 115px;
        height: 115px;
        border-radius: 100%;
        background-color: #87CEEB;
        text-align: center;
        text-size:100px;
        text-blod:5px;
        line-height: 100px;
        margin: 20px;
        box-shadow: 0 5px 10px rgba(50, 100, 35, 40);
    }

    a {
        color: white;
        text-decoration: blink;
        text-size:200px;
    }
    </style>
</head>

<body>
    <ol>
       
              <li><a href="13/1.html">第十三周作业-1</a></li>
              <li><a href="13/2.html">第十三周作业-2</a></li>
              <li><a href="13/3.html">第十三周作业-3</a></li>
    </ol>
</body>

</html>